You and your family went out for an excursion. Everybody was excited to plunge into the cool water except you. You peeked into the pool and then backed out. The mere sight of it gave you the creeps. After a short while, you heard an explosion. You felt light-headed and your heartbeat started to go crazy. The loud sound sent the chills up to your spine. You felt the urge to run but you couldn’t — your difficult breathing was in the way.